Hi I accidentally purchased a Kontakt upgrade and I want to cancel. At the same time I also purchased the full version. In addition, I can't activate the version (8), it says demo
So… 2 different issues
For the first, refund, you must contact support using the link provided in your Order History:
https://support.native-instruments.com/hc/en-us/articles/209568149-I-would-like-to-request-a-return-or-refund
For the second, demo: have you tried entering the serial in Native Access? If so, if Kontakt is listed as demo also in Native Access, check if this article is useful:
https://support.native-instruments.com/hc/en-us/articles/4402377887121-My-products-are-showing-as-demo-in-Native-Access
